An input-output matrix is like an x-ray of the productive system of an economy that shows the health of the fundamentals and survey the economic activity developed during a year. Soza-Amigo et al (2010 and 2012) estimated Punta Arenas county input-output matrices for the years 2003 and 2007. Based on that estimation, this paper presents the economic characteristics of the county for both years and the main structural changes occurred during the five years under study. The results show that while some primary activities are very important on the regional gross domestic product, they are a set of services that is increasing their share in the production. Also a significant increment in the output multipliers is taking place; the change in multipliers has been significantly lower than those occurred in income, which is suggesting that the changes might be associated to significant capital increase in Punta Arenas economy.